diff --git a/src/emu/i8088.rs b/src/emu/i8088.rs
index b13ab8d..679eb92 100644
--- a/src/emu/i8088.rs
+++ b/src/emu/i8088.rs
@@ -563,10 +563,13 @@ impl i8088 {
                   0x20 => shl[form=word3, flags, modrm16, reglo=c] / "2/23+",       // SHL r/m16, CL
                   0x28 => shr[form=word3, flags, modrm16, reglo=c] / "2/23+",       // SHR r/m16, CL
                   0x38 => sar[form=word3, flags, modrm16, reglo=c] / "2/23+" },     // SAR r/m16, CL
-          0xE3 => jcxz[reg=ip, reg=c, rel8] / "18/6",  // JCXZ rel8
+          0xE0 => loopnz[flags, reg=ip, reg=c, rel8] / "18/6",  // LOOPNZ/LOOPNE rel8
+          0xE1 => loopz[flags, reg=ip, reg=c, rel8] / "18/6",   // LOOPZ/LOOPE rel8
+          0xE2 => looop[reg=ip, reg=c, rel8] / "17/5",          // LOOP rel8
+          0xE3 => jcxz[reg=ip, reg=c, rel8] / "18/6",           // JCXZ rel8
           0xE9 => jmp[reg=ip, rel16] / 15,  // JMP rel16
-          0xEB => jmp[reg=ip, rel8] / 15,  // JMP rel8
-          0xE8 => call[reg=ip, bus, regval=ss, reg=sp, rel16] / 23,
+          0xEB => jmp[reg=ip, rel8] / 15,   // JMP rel8
+          0xE8 => call[reg=ip, bus, regval=ss, reg=sp, rel16] / 23,  // CALL rel16
           0xF2 => nop[rep=NotEqual, prefix] / 0,  // REPNE/REPNZ
           0xF3 => nop[rep=Equal, prefix] / 0,     // REP/REPE/REPZ
           0xF5 => cmc[flags] / 2,  // CMC (Complement Carry Flag)
diff --git a/src/emu/operations.rs b/src/emu/operations.rs
index 6475377..b0ae4c8 100644
--- a/src/emu/operations.rs
+++ b/src/emu/operations.rs
@@ -271,6 +271,31 @@ where for<'a> FarPtr<'a>: RValue<T>
   });
 }
 
+// loop is a rust keyword and I don't wanna put r# everywhere
+pub fn looop(mut ip: Reg, mut cx: Reg, rel8: u16) {
+  let count = cx.read().wrapping_sub(1);
+  cx.write(count);
+  if count != 0 {
+    ip.write(ip.read().wrapping_add(rel8));
+  }
+}
+
+pub fn loopnz(flags: &mut Flags, mut ip: Reg, mut cx: Reg, rel8: u16) {
+  let count = cx.read().wrapping_sub(1);
+  cx.write(count);
+  if count != 0 && !flags.zf() {
+    ip.write(ip.read().wrapping_add(rel8));
+  }
+}
+
+pub fn loopz(flags: &mut Flags, mut ip: Reg, mut cx: Reg, rel8: u16) {
+  let count = cx.read().wrapping_sub(1);
+  cx.write(count);
+  if count != 0 && flags.zf() {
+    ip.write(ip.read().wrapping_add(rel8));
+  }
+}
+
 pub fn mov<T>(mut dst: impl LValue<T>, src: impl RValue<T>) {
   dst.write(src.read());
 }